The sum of three consecutive numbers is 243. Find the numbers.
With consecutive numbers, each new number is 1 larger than the previous one.
First number = x
Second number = x + 1
Third number = x + 1 + 1 = x + 2
The sum of three consecutive numbers is 243 means:
x + x + 1 + x + 2 = 243
3 x + 3 = 243
Subtract 3 to bith sides.
3 x = 240
x = 240 / 3 = 80
First number = 80
Second number = 80 + 1 = 81
Third number = 81 + 1 = 82
Check result.
80 + 81 + 82 = 243